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22 December, 02:05

How many solution are there for the following system of equation?

y=x^2-5x+5

y=x-6

+5
Answers (1)
  1. 22 December, 02:13
    0
    x² - 5x + 5 = x - 6

    + 5x + 5x

    x² + 5 = 6x - 6

    + 6 + 6

    x² + 11 = 6x

    x² - 6x + 11 = 0

    x = - (-6) + / - √ ((-6) ² - 4 (1) (11))

    2 (1)

    x = 6 + / - √ (36 - 44)

    2

    x = 6 + / - √ (-8)

    2

    x = 6 + / - 2√ (2)

    2

    x = 3 + √ (2)

    x = 3 + √ (2) x = 3 - √ (2)

    There are many solutions.
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